Duh. 10 gallons of water (8 lbs per gallon) and the device must weigh close to 100, if not more. So, you are testing the stability control with an additional 180 pounds or so on the ass end? Aren't they supposed to design cars without added handicapping, or is that just the way Ford/Volvo does it?
@California Stig: Rupp readily admitted it's in the early stages of development, so think of it as safety skunk works. To get back on point though, to mitigate the effect of the added weight, they removed all the rear trim right down to the steel and the spare. It's probably not quite enough to place the CG back in the original location, but it helps. The larger concern is with the change in the moment of inertia and multiple axes. That's something they're still working out. Keep in mind too, you can load this data into a sim and eliminate the offending mass.
"Using a Martin Engineering Hurricane Cannon, the test driver can pilot the car as normal and, with the push of a button, simulate the force of a car striking the back of the car."
Yeah, /suuuure/. I bet the Engineers' next great lifesaving simulation will be "If we strapped missile launchers to the roof rack, and fired them ... say ... at each other ... this would emulate the effects of a heavy hailstorm ... please?"
@Brian O'Toole: In this case the engineer is probably thinking, we'll use this for about a year, then it will need to be scrapped out, my boss will just let me take the cannon parts home. "I will RULE at the 2011 Pumpkin Chunkin contests!"
why were they making essentially a large right hand turn before setting the system off? I was expecting them to be driving straight and then hit the trigger. Why, Ben, Why? Inquiring engineers want to know.
@vwminispeedster, pronounded Si-trow-in: they're upsetting the chassis in the middle of a turn, right at the limit of grip, a perfect place to test a stability control system.
Reminds me of the compressor sneezing character from Cars. This would be great to have mounted forwards-facing, then sneeze on cross traffic while waiting at a red light.
ford's stability control sucks. almost killed me in a rental ford escape approaching an intersection with several pot holes. the light was red and i was gently depressing the brake to stop normally at the light. stability control had a different plan and kicked in when i hit a small pot hole and began making the brakes stutter. because of this i could not stop in time and actually had to turn right to avoid ending up in the middle of the intersection. needless to say i was f'in pissed and my passengers were wiggin out. luckily there wasn't any traffic, but it could have ended very differently if i were a: a woman or 2: there was traffic.
@Joe Valasek: at one wheel? i never had that experience with any other vehicle included my own mazda on the same road under the same conditions. ford's abs blows and could have gotten me killed.
and after it kicked it i try letting off and braking again and it couldn't stop.
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"Hey, let's have a large wet cannon blast in or backside to know how it feels to get hit from behind"
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Yeah, /suuuure/. I bet the Engineers' next great lifesaving simulation will be "If we strapped missile launchers to the roof rack, and fired them ... say ... at each other ... this would emulate the effects of a heavy hailstorm ... please?"
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So, if you're hit on the left side it will shoot on the right side to balance?
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The wheels detected zero velocity under braking, so the ABS pumps kicked in.
Maybe if you hit the brakes harder and let the ABS fully work, you would have stopped sooner?
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and after it kicked it i try letting off and braking again and it couldn't stop.
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